Chevrolet 1997 Monte Carlo Owner's Manual page 286

Maintenance Schedule
I
Short Trip/City Definition
Follow the Short Trip/City Maintenance Schedule if any
one of these conditions is true for your vehicle:
0
Most trips are less than 5 to 10 miles (8 to 16 km).
This is particularly important when outside
temperatures are below freezing.
driving in stop-and-go traffic).
Most trips include extensive idling (such as frequent
Most trips are through dusty areas.
0
You frequently tow a trailer or use
a
carrier
on
top of
If the vehicle is used for delivery service, police, taxi
your vehicle.
or other commercial application.
One o f the reasons you should follow this schedule
i f
you operate your vehicle under any o f these conditions
is that these conditions cause engine oil to break
down soonel:
Short Trip/City Intervals
Every 3,000 Miles (5 000 km): Engine Oil and Filter
Change (or 3 months, whichever occurs first).
Every 6,000 Miles (10 000 km): Tire Rotation.
Every 15,000 Miles (25 000 km): Air Cleaner Filter
Inspection, if driving in dusty conditions.
Every 30,000 Miles
(50 000 km): Air Cleaner Filter
Replacement. Fuel Tank, Cap and Lines Inspection.
Every 50,000 Miles (83 000 km): Automatic Transaxle
Service (severe conditions only).
Every 60,000 Miles (100 000 km): Engine Accessory
Drive Belt Inspection.
At 60,000 Miles (100 000 km)
--
Then Every
15,000 Miles (25 000 km): Camshaft Timing Belt
Inspection (3.4L Code X engine only).
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement.
Every 150,000 Miles (240 000 km): Cooling System
Service (or every 60 months, whichever occurs first).
These intervals only summarize maintenance services.
Be sure to follow the complete maintenance schedule
on the following pages.